/*
 * Copyright (C) 2007-2008 OpenIntents.org
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.jd.oifilemanager.filemanager.util;

import java.io.File;

import android.net.Uri;
import android.provider.MediaStore.Audio;
import android.provider.MediaStore.Video;
import com.commonsware.android.EMusicDownloader.R;

/**
 * @version 2009-07-03
 *
 * @author Peli
 *
 */
public class FileUtils {
    /** TAG for log messages. */
    static final String TAG = "FileUtils";

    /**
     * Whether the URI is a local one.
     *
     * @param uri
     * @return
     */
    public static boolean isLocal(String uri) {
        if (uri != null && !uri.startsWith("http://")) {
            return true;
        }
        return false;
    }

    /**
     * Gets the extension of a file name, like ".png" or ".jpg".
     *
     * @param uri
     * @return Extension including the dot("."); "" if there is no extension;
     *         null if uri was null.
     */
    public static String getExtension(String uri) {
        if (uri == null) {
            return null;
        }

        int dot = uri.lastIndexOf(".");
        if (dot >= 0) {
            return uri.substring(dot);
        } else {
            // No extension.
            return "";
        }
    }

    /**
     * Returns true if uri is a media uri.
     *
     * @param uri
     * @return
     */
    public static boolean isMediaUri(String uri) {
        if (uri.startsWith(Audio.Media.INTERNAL_CONTENT_URI.toString())
            || uri.startsWith(Audio.Media.EXTERNAL_CONTENT_URI.toString())
            || uri.startsWith(Video.Media.INTERNAL_CONTENT_URI.toString())
            || uri.startsWith(Video.Media.EXTERNAL_CONTENT_URI.toString())) {
            return true;
        } else {
            return false;
        }
    }

    /**
     * Convert File into Uri.
     * @param file
     * @return uri
     */
    public static Uri getUri(File file) {
        if (file != null) {
            return Uri.fromFile(file);
        }
        return null;
    }

    /**
     * Convert Uri into File.
     * @param uri
     * @return file
     */
    public static File getFile(Uri uri) {
        if (uri != null) {
            String filepath = uri.getPath();
            if (filepath != null) {
                return new File(filepath);
            }
        }
        return null;
    }

    /**
     * Returns the path only (without file name).
     * @param file
     * @return
     */
    public static File getPathWithoutFilename(File file) {
        if (file != null) {
            if (file.isDirectory()) {
                // no file to be split off. Return everything
                return file;
            } else {
                String filename = file.getName();
                String filepath = file.getAbsolutePath();

                // Construct path without file name.
                String pathwithoutname = filepath.substring(0, filepath.length() - filename.length());
                if (pathwithoutname.endsWith("/")) {
                    pathwithoutname = pathwithoutname.substring(0, pathwithoutname.length() - 1);
                }
                return new File(pathwithoutname);
            }
        }
        return null;
    }

    /**
     * Constructs a file from a path and file name.
     *
     * @param curdir
     * @param file
     * @return
     */
    public static File getFile(String curdir, String file) {
        String separator = "/";
        if (curdir.endsWith("/")) {
            separator = "";
        }
        File clickedFile = new File(curdir + separator + file);
        return clickedFile;
    }

    public static File getFile(File curdir, String file) {
        return getFile(curdir.getAbsolutePath(), file);
    }

    public static boolean canWeOpen(File file) {
        String fileName = file.getName();
        String lcFileName = fileName.toLowerCase();
        return lcFileName.endsWith(".emx");
    }

}
